Carry-On for Koh Samui: Check Your Aircraft's Bag Limit

If your Koh Samui itinerary includes a Bangkok Airways flight, the published hand-baggage limit is one cabin item up to 7 kg. The maximum size depends on the aircraft:

The widely quoted 20 kg Economy allowance is for checked baggage. It does not mean that a 20 kg bag or a 100 × 50 × 30 cm case can travel in the cabin. The airline's unchecked-baggage table specifies one item and does not publish a separate personal-item entitlement.

A safe packing approach

When the operating aircraft is not confirmed, use a bag within 50 × 36 × 23 cm. Weigh it after packing, including items such as chargers and toiletries. If you need more than 7 kg, compare the checked-baggage allowance and any charges on your booking instead of relying on a larger cabin allowance.

For a beach trip, choose clothing and toiletries based on your itinerary, weather and access to laundry. Keep essential medication, documents and fragile items in the permitted cabin item. Check airport security rules for liquids and any batteries separately from the airline's bag-size allowance.

Official source: Bangkok Airways Baggage Allowance, “Unchecked Baggage” aircraft table; checked 23 September 2026. Confirm the operating airline and aircraft for every segment before departure.